Home / 5,181.98-7,151.22-2,943.81

Finding the Fourth Proportional to 5,181.98, 7,151.22 and 2,943.81

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Solution

The fourth proportional to 5,181.98, 7,151.22 and 2,943.81 is: 4,062.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.98 : 7,151.22 = 2,943.81 : x
  2. Step 2: Convert to fraction form
    5,181.98/7,151.22 = 2,943.81/x
  3. Step 3: Cross multiply
    5,181.98x = 7,151.22 × 2,943.81
  4. Step 4: Simplify right side
    5,181.98x = 21,051,832.95
  5. Step 5: Solve for x
    x = 21,051,832.95/5,181.98
  6. Step 6: Final answer
    x = 4,062.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.